Planning Permission Ireland
GrantedExtensionDecided 20 November 2025

Ard Aoibhinn, Redgap, Rathcoole, Co Dublin, D24 VP89

Rear and front extensions, a rear dormer window, and wastewater system upgrades at a house in Rathcoole.

SD25B/0522W · South Dublin County Council · Lodged 1 September 2025

Reference
SD25B/0522W
Authority
South Dublin County Council
Register status
Decided
Type
Permission
Received
1 September 2025

Summary

AI-generated

The proposed works include a new single-story rear extension, a front porch extension, and a rear dormer window. It also involves replacing the existing sewage system with a new domestic wastewater treatment system and widening the vehicular entrance.

Extensionextensiondormerretrofit
Storey
1

Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.

Official record

Development description

Full planning permission for the following: (a) new single storey extension to rear of existing dwelling, (b) new single storey porch extension to front of existing dwelling, (c) new dormer window to rear of existing dwelling, (d) decommissioning and backfilling / removal of existing sewage treatment system and replacement of same with a new on-site domestic wastewater treatment system, (e) modifications to include widening of existing vehicular entrance pillars and gate, (f) modifications to existing window and door arrangements throughout, energy upgrades / retrofit including external insulation, connection to existing site services, boundary treatment, landscaping and all associated site development works

Built & sold

What happened next

Beyond the decision: whether this development was built, and what property here has sold for.

This property has sold

  • €810,000
    16 June 2025

Recent sales nearby

within 500 m
Residential Property Price Register sales within 500 metres of this site
AddressDatePriceDistance
Leath Hardain, Redgap, RathcooleJan 2026€815,000325 m
Upper Floor, 18 Fitzwilliam Sq, Dublin 2Dec 2025€330,000357 m

Nearby properties, not this site — a guide to local values.

Sources: Building Control Management System (commencement notices) and the Residential Property Price Register, licensed under CC BY 4.0. Records are matched to this application by location and may not be exhaustive; always confirm against the official source before relying on them.

Key dates

Timeline

  1. Application received1 September 2025
  2. Decision due1 December 2025
  3. Decision issued20 November 2025
  4. Permission expiry5 January 2031

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